#include <grp.h>
#include <pwd.h>
#include <sys/stat.h>
+#include <sys/ioctl.h>
#include <stdio.h>
#include <fcntl.h>
#include <time.h>
#include <sys/resource.h>
#include <sys/socket.h>
+#ifdef HAVE_INOTIFY
+#ifdef HAVE_SYS_INOTIFY_H
+#include <sys/inotify.h>
+#else
+#include "inotify-nosys.h"
+#endif
+#endif
+
#include <libdaemon/dfork.h>
#include <libdaemon/dsignal.h>
#include <libdaemon/dlog.h>
assert(c);
- opterr = 0;
while ((o = getopt_long(argc, argv, "hDkVf:rcs", long_options, NULL)) >= 0) {
switch(o) {
c->debug = 1;
break;
default:
- fprintf(stderr, "Invalid command line argument: %c\n", o);
return -1;
}
}
static int is_yes(const char *s) {
assert(s);
- return *s == 'y' || *s == 'Y';
+ return *s == 'y' || *s == 'Y' || *s == '1' || *s == 't' || *s == 'T';
}
static int load_config_file(DaemonConfig *c) {
c->server_config.add_service_cookie = is_yes(p->value);
else if (strcasecmp(p->key, "publish-dns-servers") == 0) {
avahi_strfreev(c->publish_dns_servers);
- c->publish_dns_servers = avahi_split_csv(p->value);
- } else {
+ c->publish_dns_servers = avahi_split_csv(p->value);
+ } else if (strcasecmp(p->key, "publish-a-on-ipv6") == 0)
+ c->server_config.publish_a_on_ipv6 = is_yes(p->value);
+ else if (strcasecmp(p->key, "publish-aaaa-on-ipv4") == 0)
+ c->server_config.publish_aaaa_on_ipv4 = is_yes(p->value);
+ else {
avahi_log_error("Invalid configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
goto finish;
}
avahi_log_info("%s", text);
}
+#ifdef HAVE_INOTIFY
+
+static int inotify_fd = -1;
+
+static void add_inotify_watches(void) {
+ int c = 0;
+ /* We ignore the return values, because one or more of these files
+ * might not exist and we're OK with that. In addition we never
+ * want to remove these watches, hence we keep their ids? */
+
+#ifdef ENABLE_CHROOT
+ c = config.use_chroot;
+#endif
+
+ inotify_add_watch(inotify_fd, c ? "/services" : AVAHI_SERVICE_DIR, IN_CLOSE_WRITE|IN_DELETE|IN_DELETE_SELF|IN_MOVED_FROM|IN_MOVED_TO|IN_MOVE_SELF
+#ifdef IN_ONLYDIR
+ |IN_ONLYDIR
+#endif
+ );
+ inotify_add_watch(inotify_fd, c ? "/" : AVAHI_CONFIG_DIR, IN_CLOSE_WRITE|IN_DELETE|IN_DELETE_SELF|IN_MOVED_FROM|IN_MOVED_TO|IN_MOVE_SELF
+#ifdef IN_ONLYDIR
+ |IN_ONLYDIR
+#endif
+ );
+}
+
+#endif
+
+static void reload_config(void) {
+
+#ifdef HAVE_INOTIFY
+ /* Refresh in case the config dirs have been removed */
+ add_inotify_watches();
+#endif
+
+#ifdef ENABLE_CHROOT
+ static_service_load(config.use_chroot);
+ static_hosts_load(config.use_chroot);
+#else
+ static_service_load(0);
+ static_hosts_load(0);
+#endif
+ static_service_add_to_server();
+ static_hosts_add_to_server();
+
+ if (resolv_conf_entry_group)
+ avahi_s_entry_group_reset(resolv_conf_entry_group);
+
+ load_resolv_conf();
+
+ update_wide_area_servers();
+
+ if (config.publish_resolv_conf && resolv_conf && resolv_conf[0])
+ resolv_conf_entry_group = add_dns_servers(avahi_server, resolv_conf_entry_group, resolv_conf);
+}
+
+#ifdef HAVE_INOTIFY
+
+static void inotify_callback(AvahiWatch *watch, int fd, AVAHI_GCC_UNUSED AvahiWatchEvent event, AVAHI_GCC_UNUSED void *userdata) {
+ char* buffer;
+ int n = 0;
+
+ assert(fd == inotify_fd);
+ assert(watch);
+
+ ioctl(inotify_fd, FIONREAD, &n);
+ if (n <= 0)
+ n = 128;
+
+ buffer = avahi_malloc(n);
+ if (read(inotify_fd, buffer, n) < 0 ) {
+ avahi_free(buffer);
+ avahi_log_error("Failed to read inotify event: %s", avahi_strerror(errno));
+ return;
+ }
+ avahi_free(buffer);
+
+ avahi_log_info("Files changed, reloading.");
+ reload_config();
+}
+
+#endif
+
static void signal_callback(AvahiWatch *watch, AVAHI_GCC_UNUSED int fd, AVAHI_GCC_UNUSED AvahiWatchEvent event, AVAHI_GCC_UNUSED void *userdata) {
int sig;
const AvahiPoll *poll_api;
case SIGHUP:
avahi_log_info("Got SIGHUP, reloading.");
-#ifdef ENABLE_CHROOT
- static_service_load(config.use_chroot);
- static_hosts_load(config.use_chroot);
-#else
- static_service_load(0);
- static_hosts_load(0);
-#endif
- static_service_add_to_server();
- static_hosts_add_to_server();
-
- if (resolv_conf_entry_group)
- avahi_s_entry_group_reset(resolv_conf_entry_group);
-
- load_resolv_conf();
-
- update_wide_area_servers();
-
- if (config.publish_resolv_conf && resolv_conf && resolv_conf[0])
- resolv_conf_entry_group = add_dns_servers(avahi_server, resolv_conf_entry_group, resolv_conf);
+ reload_config();
break;
case SIGUSR1:
const AvahiPoll *poll_api = NULL;
AvahiWatch *sig_watch = NULL;
int retval_is_sent = 0;
+#ifdef HAVE_INOTIFY
+ AvahiWatch *inotify_watch = NULL;
+#endif
assert(c);
#endif
+#ifdef HAVE_INOTIFY
+ if ((inotify_fd = inotify_init()) < 0)
+ avahi_log_warn( "Failed to initialize inotify: %s", strerror(errno));
+ else {
+ add_inotify_watches();
+
+ if (!(inotify_watch = poll_api->watch_new(poll_api, inotify_fd, AVAHI_WATCH_IN, inotify_callback, NULL))) {
+ avahi_log_error( "Failed to create inotify watcher");
+ goto finish;
+ }
+ }
+#endif
+
load_resolv_conf();
#ifdef ENABLE_CHROOT
static_service_load(config.use_chroot);
if (sig_watch)
poll_api->watch_free(sig_watch);
+#ifdef HAVE_INOTIFY
+ if (inotify_watch)
+ poll_api->watch_free(inotify_watch);
+ if (inotify_fd >= 0)
+ close(inotify_fd);
+#endif
+
if (simple_poll_api) {
avahi_simple_poll_free(simple_poll_api);
simple_poll_api = NULL;
if (config.use_syslog || config.daemonize)
daemon_log_use = DAEMON_LOG_SYSLOG;
+ if (daemon_close_all(-1) < 0) {
+ avahi_log_error("Failed to close remaining file descriptors: %s", strerror(errno));
+ goto finish;
+ }
+
if (make_runtime_dir() < 0)
goto finish;
projects / catta / blobdiff